Question

The ad reads,"$725 or best offer."If your offer of$580 is accepted,how much money will you save?

Answer 1

Answer: You saved $145
----
If you had paid what the ad said, you would have ended up paying $725. However, you actually ended up paying $580.

To find how much you saved, you find the difference between how much you could have paid and how much you actually paid by subtracting $580 from $725:
$\ 725 - \ 580 = \ 145$